That is why I created this thread 
I am always trying share thoughts and ideas but mostly there seems to be little interest 
I post quite a few things elsewhere. Below are some links to useful things that compliment openwebnet and other automation. The barometer is a delight and people ask me to make one for them. It has dials in modern style and communicates via mqtt with openHAB. It sounds like an old gradfather clock when the pointers move but its driven with small stepper motors. There are pictures of it in the link below. Thats the v1. I have nearly finshed v2. Neater wiring and other small improvements.
Mobile-Alerts sensors
The more useful stuff is at the end as I developed the idea.
Some examples of the monitioring
Other sensors, projects I built but with no post about them
- Cistern level sensor (6000L tank to collect rainwater from roof)
- Garden water flow rate (for cistern)
- Music server. FLAC files.
- Touch screen music player
hint >>> I like RasberryPi’s 
Planned projects:
Automatic watering system
IP camera
If you search on my name you will see I post quite a bit… Voice control using the Alexa binding was the most recent thing I helped with; especially getting it to work with the BUS blinds. Works good now.